Scientific Name:
Corylopsis spicata
Pronunciation:
kore-ee-LOP-siss spy-KAY-tuh
Common Name:
spike witchhazel, spike winter hazel
Family Name:
Hamamelidaceae
Plant Type:
Shrub - deciduous
Key ID Features:
Multi-stemmed shrub typically 1.5-2.5m tall and eventually wider; leaves alternate, most blades broadly ovate to obovate, 5-10cm long x 3-6cm wide, margin serrate with aristate tips, base cordate to rounded, dark green with glaucous undersides; racemes pendant, 3-5cm long, appear before leaves, each with 6-14 florets that are <1cm long, yellow with pink filaments and purplish anthers. Winter ID: flower buds stalked, ovoid, about 1cm long.
Habit:
Open, Spreading, Upright
Form:
Oval - vertical, Round
Texture:
Medium
Mature Height:
2 - 3m
Mature Spread:
2 - 3m
Growth Rate:
Fast
Origin:
S.E. Asia / Japan / China (Japan)
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Full sun, Part sun/part shade
Soil/Growing Medium:
Acidic, Humus rich, Well-drained
Landscape Uses:
Mixed shrub border, Spring interest
Additional Info:
Leaf Morphology:
Form:
Simple
Arrangement:
Alternate
Texture/Venation:
Soft flexible, Pinnate venation
Surfaces:
Glabrous
Colour in Summer:
Dark-green, Purpish-bronze new growth; lower surface glaucous
Colour in Fall:
Yellow
Shapes:
Obovate, Ovate
Apices:
Acuminate
Bases:
Cordate, Rounded
Margins:
Serrate
Additional Info:
to 10cm long
Inflorescence Type:
Raceme
Flower Morphology:
Flowers perfect
Number Of Petals:
5
Corolla Shape:
Rotate/stellate
Ovary Position:
Perigynous
Colour (petals):
Yellow (purple anthers)
Flower Time at Peak:
May, Jun
Fruit Type:
Capsule
Fruit Colour:
Brown
Fruiting Time:
Jul, Aug
Bark Morphology:
Prominent lenticels, Multi-stem trunk
Bark or Stem Colour:
Tan, Brown
Leaf Bud Type:
Conical (long-pointed)
Leaf Scar Shape:
Half-round
Maintenance:
Low
Pest Susceptibility:
(Pest resistant, Disease resistant)
